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Staff Mobile Engineer

Jakarta, Jakarta, Indonesia🌐 Remote💼 Full-time🗓 2026-10-06 → 2026-10-07

Core

Architect high-performance, low-latency mobile applications for stock trading, crypto, and banking platforms serving millions of users.

Role type

Staff Mobile Engineer (Individual Contributor)

Builds

High-frequency trading and fintech mobile client applications

Domain

Fintech / Mobile Engineering

Deliverable

production ML models | product features

Required skills

Native mobile architecture (Android/Kotlin or iOS/Swift), Clean architecture, Modularization, Reactive programming, Performance profiling, Secure local storage, Concurrency management, Offline-first data synchronization

Preferred skills

AI tool integration, Technical mentorship, Cross-functional collaboration

Technologies

Kotlin, Swift, Coroutines, Reactive streams, EncryptedSharedPreferences, Keychain/Keystore, WebSocket

Responsibilities

Architect and scale high-performance mobile client applications; Drive the mobile engineering roadmap and establish architectural patterns; Optimize app rendering performance and minimize memory footprint; Design offline-first data synchronization and secure local storage; Collaborate with backend architects and security teams; Mentor senior engineers and lead technical reviews. (via careerplan.io/jobs/0022d4ff-a9cd-4e8f-bdb5-5bc3453f4b2b-staff-mobile-engineer-at-ajaib)